science
Grade-3
Easy
Question
A child’s palms were freezing due to cold. How can he warm his palms?
- He should touch the ice
- He should rub his palms together
- He should flap his palms
- None of the above
The correct answer is: He should rub his palms together
The rubbing together of two objects causes friction and friction generates heat. Hence, in order for a child to warm his palms, he should rub his palms together.
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